CT6844 AC/DC Current Clamp

Product enquiry for CT6844 AC/DC Current Clamp

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Hioki AC/DC clamp sensors are best-in-class current sensors for use with power meters, Memory HiCorders and high performance oscilloscopes.

The CT6845 is a high-precision 500 A AC/DC current probe that features a wide operating temperature range and large jaw diameter, making them ideal for evaluating the operational integrity of devices that are subject to extreme temperature ranges.

A comment from the Good Design Award 2016

“The ergonomic design of these products appropriately reflects conditions in the field as well as worker needs through features such as one-handed operation and a grip that can be easily opened and closed in any orientation. In addition, they exhibit a high level of overall finish, including through the effective use of visual cues, for example use of yellow and gray to prompt the user to interact with the instrument in a way that avoids its inherent hazards.”

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Rated current 500 A AC/DC
Max. allowable input 720 A peak (requires derating)
Frequency characteristics DC to 200 kHz
Phase: DC to 200 kHz
Amplitude and phase accuracy DC ±0.3 % rdg. ±0.02 % f.s. (Phase: Not defined)
DC < f ≤ 100 Hz ±0.3 % rdg. ±0.01 % f.s. (Phase: ±0.1°)Defined to 200 kHz
Output voltage 4 mV/A
(voltage output with the Sensor Unit use with a device having a 1 MΩ input resistance or higher)
Core diameter φ 20 mm (0.79 in)
Operating temperature, humidity -40 °C to +85 °C (-40 °F to 185 °F), 80% RH or less (with no condensation)
Power supply ±11 V to ±15 V DC (Power suppled via the Sensor Unit, which supports 100 to 240 V AC)
Power consumption 7 VA max. (at 500 A/55 Hz, ±12 V power requirement)
Dimensions and mass 153 mm (6.02 in)W × 67 mm (2.64 in)H × 25 mm (0.98 in)D, 400 g (14.1 oz), cord length: 3 m (9.84 ft)
Accessories Instruction manual ×1, Mark bands ×6, Carrying Case×1

Compatible models…CT6844 (-05)

Compatible models CT6844 CT6844-05
Power Analyzer PW6001, PW3390 △ (Requires CT9900) OK
Power Analyzer 3390 OK △ (Requires CT9901)
Power HiTester 3193 series OK △ (Requires CT9901)
Current Unit 8971 △ (Requires the 9318) △ (Requires the 9318, CT9901)
F/V Unit 8940 △ (Requires the 9318, 9705) △ (Requires the 9318, 9705, CT9901)

Key Features

  • Ideal for use in environmental testing with broad -40˚C to 85˚C temperature range
  • High precision with a clamp-type design, ±0.3% amplitude accuracy, ±0.1° phase accuracy
  • Wide-bandwidth from DC to 200 kHz
  • Single-handed operation and robust locking mechanism
  • Reduced effects from magnetic fields, conductor position, and noise from nearby wires
  • For EV/HEV battery charge and discharge efficiency testing and inverter and power conditioner conversion efficiency evaluations

Application Notes